Exodus 39:31 in the King James Version of the Bible states, "And they tied unto it a lace of blue, to fasten it on high upon the mitre; as the Lord commanded Moses." This verse is part of a larger passage describing the intricate details of the priestly garments that were to be worn by Aaron and his sons as they ministered in the tabernacle. This particular verse specifically refers to the blue lace that was used to fasten the golden plate, inscribed with the words "Holiness to the Lord," to the high priest's turban or mitre. This seemingly small detail holds significance in the larger context of the Israelites' reverence for God and the importance of obedience to His commands.

In order to understand the deeper meaning of this verse, we must first consider the context in which it is set. The book of Exodus recounts the liberation of the Israelites from slavery in Egypt and their journey to Mount Sinai, where God enters into a covenant with them and gives them the law. The specific instructions for the construction of the tabernacle and the priestly garments are a manifestation of God's presence among his people and serve to set the Israelites apart as a holy nation. The attention to detail in the design and construction of these items reflects the Israelites' commitment to honoring and worshiping God with reverence and obedience.

The use of the color blue in the fastening lace is also significant. In biblical times, blue was a rare and costly dye, often associated with royalty and divinity. The use of the color blue in the priestly garments symbolized the heavenly origins of the priesthood and the authority bestowed upon them by God. Blue is also often associated with the heavens and serves as a reminder of the transcendence of God and His sovereignty over all creation.

The act of "fastening it on high upon the mitre" demonstrates the importance of the symbolic representation of the holiness of the priesthood and the authority of the high priest. By following God's command to tie the blue lace onto the mitre, the priests were acknowledging their submission to God's authority and their role as mediators between God and the people of Israel.

The overarching theme of this verse is the importance of obedience to God's commands. Throughout the book of Exodus, and indeed the entire Bible, we see the significance of obedience in the lives of God's people. In this specific instance, the meticulous attention to detail in the construction of the priestly garments underscores the Israelites' commitment to honoring and obeying God in every aspect of their lives. By following the specific instructions given to them by the Lord, the Israelites demonstrated their faithfulness and devotion to God.

Furthermore, the emphasis on the holiness of the priesthood and the significance of the high priest's role as the representative of the people before God points to the larger theme of the need for mediation and atonement. The intricate details of the priestly garments and the consecration of the priests served as a visual reminder of the Israelites' need for a mediator between themselves and a holy God. This ultimately foreshadows the ultimate mediator and high priest, Jesus Christ, who would make atonement for sin once and for all.

In conclusion, Exodus 39:31 in the King James Version of the Bible holds a rich and multifaceted meaning that underscores the themes of obedience to God's commands, the symbolism of the priestly garments, and the need for mediation and atonement. This seemingly small detail in the construction of the priestly garments serves as a powerful reminder of the Israelites' commitment to honoring and obeying God in every aspect of their lives. It also points to the larger redemptive plan of God and the ultimate mediator, Jesus Christ, who would fulfill the role of the high priest and make atonement for sin.